A. Potential Odoo Email
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output

You've just discovered Odoo, an awesome suite of web-based open-source business apps. Not only impressed by the idea and quality of the apps, you, as a member of the open-source community, loved the fact that Odoo is open source.

After hours reading the codebase and learning how Odoo works, you decide to check the commit history of the most fun app: Real State! But wait... you just realized... there is a pattern in some of the author emails! Of course! Odoo employees! There is also a whole team of developers making sure the codebase is clean and developing new features!

You realized that Odoo emails have the format S@odoo.com, where S is a string of lowercase letters with size 2, 3 or 4. Really excited by your own discovery, you decide to write a script to check if an email is a potential Odoo email. That is, if it follows the described format.

Input

The only line of the input contains a string $$$E$$$ ($$$1 \leq |E| \leq 50$$$, $$$|E|$$$ is the size of the string E).

Output

Print yes if $$$E$$$ follows the format in the statement and no otherwise.

Examples
Input
pf@odoo.com
Output
yes
Input
palm@odoocom
Output
no
Input
im_not_an_email
Output
no
Input
jcsc@odoo.net
Output
no
Input
nAsg@odoo.com
Output
no